Key parameters at a glance

A radius of 1.97 Earth radii
A mass of 4.54 Earth masses
Surface gravity around 1.17 g
An orbital period of 11.556 days
Semi-major axis 0.0983 AU
Equilibrium temperature 703 K (430 °C)
Distance from Earth 2,456.39 light-years
Earth Similarity Index 0.393
Travel time at Voyager 1 speed 43,318,523 years

Kepler-1133 b Planet Profile

Physical Specs

Radius

1.97 R⊕

Radius (Jupiter)

0.176 R♃

Mass

4.54 M⊕

Mass (Jupiter)

0.014 M♃

Density

3.26 g/cm³

Surface Gravity

1.17 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.393

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#38of 1176

top 3.1%

This planet

1.97R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-224 e 1.97 R⊕ Kepler-184 c 1.97 R⊕ Kepler-347 b 1.97 R⊕

Metric	Earth	Kepler-1133 b	Jupiter
Radius (R⊕)	1.00	1.97	11.21
Mass (M⊕)	1.00	4.54	317.83
Density (g/cm³)	5.51	3.26	1.33
Surface Gravity (g)	1.00	1.17	2.53
Insolation (S⊕)	1.00	55.76	0.037

Star Catalogue Identifiers

TIC

TIC 275569784

Gaia DR2

Gaia DR2 2077831239952281472

Gaia DR3

Gaia DR3 2077831239952281472

System

Kepler-1133

Percentile among Super-Earth cohort

Radius 1.970 R⊕ · percentile 96 / cohort 1176

Mass 4.540 M⊕ · percentile 88 / cohort 1176

Orbital period 11.56 d · percentile 69 / cohort 1164

Distance 753.14 pc · percentile 64 / cohort 1171

ESI 0.393 · percentile 59 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

11.556 days

Semi-major axis

0.0983 AU

Eccentricity

0.000

Inclination

88.21 °

Year Length

A year here lasts approximately 11.56 Earth days (3.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0983 AU.

Transit Fingerprint

Depth

0.044 %

Duration

1.654 h

Impact parameter b

0.275

Rp / R★

0.019525

Transit midpoint (BJD)

2,454,971.1960

Photometric dip

Transit produces a flux drop of 442 ppm lasting ≈ 1.65 h.

Extended Orbital Architecture

Planet / star radius ratio

0.019525

Semi-major axis / stellar radius

28.000

Impact parameter (b)

0.275

Transit mid-time (BJD)

2,454,971.1960

Angular separation (arcsec)

0.13100

Eq. Temperature

703K

(430 °C)

Insolation (S⊕)

55.76

Earth = 1.00

Earth Similarity (ESI)

0.393

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-1133

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,569 K — cooler than the Sun (5,778 K)

Estimated Age

4.07 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.900 R☉

Stellar Mass

0.930 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.500 dex

Stellar density

20.392 g/cm³

Metallicity ratio

[Fe/H]

Distance

753.14 parsec

Light-years 2,456.39 ly

V-band magnitude

14.79 mag

Voyager-speed travel 43,318,523 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.300 mas

Total Proper Motion

5.743 mas/yr

PM Right Ascension

-0.54 mas/yr

PM Declination

5.72 mas/yr

Galactic Cartesian (pc)

x = 0.290 · y = -0.673 · z = 0.680

Equatorial (J2000)

RA 293.32241° · Dec 42.86749°

Galactic ℓ, b

75.678° · 11.055°

Ecliptic λ, β

309.908° · 63.112°

HTM-20 index

-91654185